Golf swing indicator



July 27, 1948. A NEWMAN ETAL 2,445,839

GOLF SWING- INDICATOR Filed May 13, 1946 1' 44552744. NEWMAN, 0 3 fin/0444 V. M/Aum,

' A E/V7025.

Patented July 27, 1948 r 2,445,829 A GOLF. swine mmca'ron Albert M.Newman and Randall V. Miller,

- Los Angeles, Calif.

j Application Maria, 1946, Serial nastiest l 1 This invention relates totest, corrective, and teaching equipment, and particularly to suchequipment to, be used in the playing of golf. QIt'is] well-known inthegame of golf that stance is'oneof the prime factors-bearing on theability ofjagolf playert'o playthe game'well With minor exceptions, theposition and swing of, a golf player determines the distance andaccuracy ofthe iiight of the ball. One of the indications of the proper'stance of agolf player is the position of his head, it being well-knownthat if the headshifts to too great an extent, either forward orbackward, with respect to the direction of flight of the ball, orupwardly, during the stroke, either the club head will notproperlycontact theball, or the desired amount of impact willpot begiveri to theball.

The presentinvention is directed to a device which ,will permit freedomof movement of the body, armsiand club, while indicating anyundesirableextent of movement or shift of the head both along the line of flight ofthe ball and in a direction transverse to the direction of flight of theball. Furthermore, if the movement of, the head is at an upward angle,such movement will also be indicated. The device providespermissible-movementwithin limits consistent with a good golf swing, butindicates any movement beyond these permissible limits. In general, thedevice consists of an electrical contact device which may be attached tothe head of the golfer, and which will indicate to the golfer, or to aninstructor, any movement and its direction beyond permissible limits. 1s

The principal object of the invention, thereforefis to facilitate theteaching and learning of good golf playing.

Another object of the invention is to provide a device for indicatingimproper body movements during a'golf swing. H s s I A' furtherbbject ofthe invention is to provide an indicator of the movement of a golfer'shead beyond permissible limits during a golf stroke.

A still further object of the invention is to provide an indicator of agolfers movements during thecourse of a golf swing. Y i l Although thenovel features which are believed to be characteristic of this inventionwill be pointed out with particularity in the appended claims, themanner of its organization and the mode of its operation will be betterunderstood by referring to the following description read in conjunctionwith the accompanying drawings, forming a part hereof, in which:

9 clai s.- (01.273-35) Fig. 1 is aperspective view of the device embodying the invention in operation.

Fig. 2 is a cross-sectional view ofthe indicator of the inventiontakenalong the line 22ofEig.i Land Fig. 3 is a schematic diagram of theelectrical circuit of the invention.

Referring now to the drawings, inf which the samefnumbers identify likeelements; abox or casing 5 with a cover fihouses the mechanism forindicating movements of a golfers head as indicated. A band Iisplacedaround the golfers head and through a cord 8 is connected withfanarmature element l0 protruding from an opening II in the sloping panell2 of thecasing 5/ At I5, l6, and H, are indicator lights, while anopening may be'p'rovided at 20 for permitting sound to pass freely fromthe interior of thecasing' to theoutside. t f

Referring now to Figs. 2and 3, on the left side of the opening I! is ametallic electrodeilron the right side, a metallic electrode 22; and onthe upper side, a metallic electrode23. The armature i0 is metallic, andmay be pivoted or otherwise attachedto the back of the casingi As shownin the drawing, one end ofaspring 25 is wrapped around a mountin ost, 26and the end of armature Ill. This type of mounting permits the armatureID to be rigid. Should a flexible armature be used, its end could befixedly attached to the back of the case.' The lamps l5, l5, and Il mayhave'diiferently colored globes, such .as red, white, and green, while,in shunt thereto, are buzzers 21, 28, and 29 which are each tuned togenerate a different tone. Itis realized, of course, that only twolights l5 and I6 may be used with'a buzzer 29 or other different combihations, although to provide both aural and visual indications in allthree directions, the triple indicatorsfjas illustrated, arepreferred.

' Any suitable source; of energy, such as a dry cell 3 I; is provided,together with a master switch 32, which maybe arrangedto be closed whenthe cover 6 is opened. The armature I0 is mounted so that in its restposition it isequidistant from electrodes 2!, 22,land 23. 23 may beadjusted closer to the armature l0 than electrodes 2| and 22, ifdesired, to indicate a less upward movement than horizontal movement ofthe head. With the switch 32 closed, it is realized that if the armaturel0 makes contact with either of the electrodes 2|, 22, or 23, a circuitwill be made and the respective lamps I5, l6, and I! with buzzers 21,28, and 29 will be energized. If the armature I0 is moved to However,electrode

